annenberg media ♪ captioning sponsored aenberg/c narrator: since 1980, latin america has been onef e most rapidly urbaning regions on eart nowhere are the sults more dramatic than in sao paulo, brazil, the third largest city in the world. in this anatomy of a mega-city, we'll explore: the urban geography of immigration and etic diversity, squatter settlements and self-construction. sao pao, brazil. with its crowded boulevards and massive skyscrapers, it seemswealthy as any city in the world. sao paulo is unique among latin american cities. in the early part ofhe, when places like rio de janeiro copied traditional european styles of construction, sao paulo was following a distinctly american model of urbanism. imitating the forms of chicago and new york, sao paulo built upward, growing vertically very quickly. buin a huge ring around the centrality slies a very different, here, stretching foriles,uickly. is a city of self-built structures in various stages of completion. they line hillsides and rocky streets where some of sao paulo's newest immigrants struggo ild mes om brick and cen